Global Patent Index - EP 1238182 A1

EP 1238182 A1 2002-09-11 - FLOW ACTUATED SHUT-OFF VALVE

Title (en)

FLOW ACTUATED SHUT-OFF VALVE

Title (de)

VOLUMENSTROM-BETÄTIGTES VENTIL

Title (fr)

FERMETURE DE SOUPAPE ACTIONNEE PAR LE DEBIT

Publication

EP 1238182 A1 (EN)

Application

EP 00966333 A

Priority

  • GB 0003927 W
  • US 45968499 A

Abstract (en)

[origin: WO0144617A1] The present invention generally provides a system and method for selectively sealing a drill string (14) or other tubular member. In one aspect, a sealing member, such as a valve (50), allows a certain level of flow of drilling fluids and/or other fluids through one or more flow channels (76) when the valve is open. To close the valve, the flow rate is increased so that a backpressure develops and urges the valve to a closed position. The valve can remain in position in the drill string and alternately open (right-hand half of the figure) and close (left-hand half of the figure) depending on the flow rate and/or the pressure drop through the valve. The valve also comprises a removable plug (90) disposed in the valve to provide access with, for example, wireline tools to a region below the valve in a wellbore.

IPC 1-7 (main, further and additional classification)

E21B 21/10

IPC 8 full level (invention and additional information)

E21B 21/10 (2006.01)

CPC (invention and additional information)

E21B 21/10 (2013.01); Y10T 137/7785 (2015.04)

Citation (search report)

See references of WO 0144617A1

Designated contracting state (EPC)

DE FR GB NL

EPO simple patent family

WO 0144617 A1 20010621; AU 7677200 A 20010625; CA 2394121 A1 20010621; CA 2394121 C 20071211; DE 60016970 D1 20050127; DE 60016970 T2 20051208; EP 1238182 A1 20020911; EP 1238182 B1 20041222; US 6349771 B1 20020226

INPADOC legal status


2018-06-27 [GBPC] GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE

- Effective date: 20171013

2018-06-06 [REG NL MM] LAPSED BECAUSE OF NON-PAYMENT OF THE ANNUAL FEE

- Effective date: 20171101

2018-05-01 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 60016970

2017-01-31 [PGFP NL] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: NL

- Payment date: 20161010

- Year of fee payment: 17

2017-01-31 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20161012

- Year of fee payment: 17

2017-01-31 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20161004

- Year of fee payment: 17

2015-11-18 [REG GB 732E] AMENDMENTS TO THE REGISTER IN RESPECT OF CHANGES OF NAME OR CHANGES AFFECTING RIGHTS (SECT. 32/1977)

- Free text: REGISTERED BETWEEN 20151022 AND 20151028

2015-05-28 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: WEATHERFORD TECHNOLOGY HOLDINGS, LLC, HOUSTON, US

- Free text: FORMER OWNER: WEATHERFORD/LAMB, INC., HOUSTON, TEX., US

- Document: DE 60016970

- Effective date: 20150417

2015-03-25 [REG NL SD] ASSIGNMENTS OF PATENTS

- Effective date: 20150318

2006-02-17 [EN] FR: TRANSLATION NOT FILED

2005-12-14 [26N] NO OPPOSITION FILED

- Effective date: 20050923

2005-01-27 [REF] CORRESPONDS TO:

- Document: DE 60016970 P 20050127

2005-01-26 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

2004-12-22 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB NL

2004-12-22 [REG GB FG4D] EUROPEAN PATENT GRANTED

2004-12-22 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20041222

2004-08-11 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB NL

2004-05-19 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): AT BE CH CY DE FR GB LI NL

2004-04-14 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20040302

2002-09-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020423

2002-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE